Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Impurity Elimination Performance and Operating Conditions in Various Contacting Methods between Slag and Metal
Akira MORIYAMA
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1969 Volume 55 Issue 9 Pages 777-788

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Abstract

Eleven kinds of the contacting methods between slag and metal to eliminate the impurity were theoretically analysed from a standpoint of kinetics.
Theoretical solutions with regards to the impurity concentration in metallic phase with each operations were derived and impurity-elimination performances were compared with each others.
For the multi-staged contacting, optimum policies on the duration of the operation, flow rate to the reactor and/or hold-up in the reactor of slags and metals were given by application of Lagrange's multiplier method and of Pontryagin's maximum principle.

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© The Iron and Steel Institute of Japan
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